topic Re: USB CDC on Kinetis K64 in Kinetis Microcontrollers

USB CDC on Kinetis K64

punitkumar — Tue, 13 Oct 2015 12:13:47 GMT

I'm trying a new baremetal USB CDC project with freescale stack 4.1.1, and after modifying the example project given for K60 MCU, i've got it worked.

But now i want to create a new standalone project by picking up the files from the Stack's Device folder, and it built and run but my PC shows -> 'Device not Recognized'

Do i need to make some modification/customization to the files.

regards

Punit Kumar

Re: USB CDC on Kinetis K64

BlackNight — Tue, 13 Oct 2015 13:16:32 GMT

Hi Punit,

you need to disable the memory protection unit first:

MPU_CESR = 0;

See USB CDC with the FRDM-K64F, finally! | MCU on Eclipse

I hope this helps,

Erich

Re: USB CDC on Kinetis K64

punitkumar — Tue, 13 Oct 2015 13:32:31 GMT

thanks Erich,

have already done this, what to do next

Re: USB CDC on Kinetis K64

BlackNight — Tue, 13 Oct 2015 13:42:23 GMT

You might have a look at that code mentioned in that article: it is based on the 4.1.1 stack and works for me, both bare metal and with RTOS.

Erich

Re: USB CDC on Kinetis K64

mjbcswitzerland — Tue, 13 Oct 2015 15:34:53 GMT

The following links contain USB-CDC for the K64 that allows 6 USB-CDCs at the same time. The FRDM-K64 supports 5 USB-CDC to UART bridges and the TWR-K64F120M supports 6 (simply program a binary and see it in action).
The operation can be simulated in the K64 simulator (including all USB operation).

Regards

Mark

Kinetis: http://www.utasker.com/kinetis.html

K64: http://www.utasker.com/kinetis/FRDM-K64F.html / http://www.utasker.com/kinetis/TWR-K64F120M.html

For the complete "out-of-the-box" Kinetis experience and faster time to market

Re: USB CDC on Kinetis K64

PitOn — Tue, 13 Oct 2015 15:54:56 GMT

See my work project.
USB Device CDC on KSDK PEx components and KDS 3.0 and KSDK 1.2.0 or KSDK 1.3.0 .

Re: USB CDC on Kinetis K64

punitkumar — Wed, 14 Oct 2015 10:27:24 GMT

Thanks for the responses

can any help out from the problems in my existing project,

i've not used PE & just pick and drop files from stack,

now my PC, which detect the USB if i use an existing example, but not with my project,

error shown in device manager - 'Windows has stopped this device because it has reported problems. (Code 43)'.

Punit Kumar

Re: USB CDC on Kinetis K64

mjbcswitzerland — Wed, 14 Oct 2015 11:47:16 GMT

The error messages don't help much if there are low level problems with USB.

If you are going to do detailed work with USB it is recommended to invest in a USB analyser - the Beagle from Total Phase for example.

Regards

Mark

Re: USB CDC on Kinetis K64

isaacavila — Wed, 14 Oct 2015 21:11:24 GMT

Hello Punit,

Could you please be so kind to attach your project?

Best Regards,

Isaac

Re: USB CDC on Kinetis K64

punitkumar — Thu, 15 Oct 2015 05:13:44 GMT

isaacavila

How to attach the project code here?

Re: USB CDC on Kinetis K64

isaacavila — Thu, 15 Oct 2015 14:20:43 GMT

Hi Punit,

Select the "use advanced editor" and then "attach" your project in a zip format.

Best Regards,

Isaac

Re: USB CDC on Kinetis K64

patrickphilp — Thu, 15 Oct 2015 15:49:00 GMT

Make sure the USB descriptor structure contents match the contents of the INF file used to install the driver. If the VID & PID don't match, it won't be able to recognize the device.

Re: USB CDC on Kinetis K64

punitkumar — Fri, 16 Oct 2015 05:41:35 GMT

hi isaacavila

mine is not showing advance editor,

tell me your email ID & i'll email you the zip folder

Re: USB CDC on Kinetis K64

punitkumar — Fri, 16 Oct 2015 07:33:35 GMT

Thanks to all for the support specially to isaacavila & BlackNight, i got my USB worked today. The problem is, i need to define LITTLE_ENDIAN in

Can someone compare the performance of usb if the project is RAM built or Flash built, i need to utilize the maximum speed of the USB module.

Re: USB CDC on Kinetis K64

punitkumar — Fri, 16 Oct 2015 07:35:40 GMT

Also if someone can provide information for get starting Ethernet on K64.

Thanks & Regards

Punit Kumar

Re: USB CDC on Kinetis K64

ivadorazinova — Fri, 16 Oct 2015 12:45:20 GMT

Hi Punit,

please see my answer at the post Re: 100Mbps Ethernet on kinetis K64

Hope this helps.

Iva